got a bunch of g10 and Phenolic to cut what would you use?

[knight_toolworks]

it i various thicknesses and a mix of materials. I used a onsrud o-flute and it had chips in the edge in a hour. I think I cut it at 1ips

[garyb]

Steve O flutes are not the tool of choice for composites such as fiberglass and phenolic
you might want to look at the 67-200 series SC 3 flute phenolic cutter
Gary

[knight_toolworks]

Steve O flutes are not the tool of choice for composites such as fiberglass and phenolic
you might want to look at the 67-200 series SC 3 flute phenolic cutter
Gary

looks like 3/8" is the smallest and I could really use 1" cut length and 1/4" diameter.

[Ajcoholic]

looks like 3/8" is the smallest and I could really use 1" cut length and 1/4" diameter.

I cut quite a few sheets of 1/8" G10 with a two flute up spiral (making parts for RC model helicopters) and didnt have issues.

But last summer I bought a sheet of 1/2" G10 to make some jigs in the shop and man-o-man, that was hellish to cut. I tried the same two flute carbide 1/4" bits and burnt up or broke a few before finding a slow feed, multi-pass route that worked.

You need to cut how thick? 1"? That will be tough..

Ive machined some very tough composites, for the local Siemens (Westinghouse) motor rewind shop, for use in large motor rewinds. I ended up cutting most of it with abrasive wheels and seemed to be easier to sand it to shape than try and machine it with router or saw blades.

I have cut a lot of bakelite and its much easier to cut for sure. There are so many "phenolics"... but G10 is definitely some of the toughest I have tried to cut.

[donek]

Have you tried a burr? Been using them for fiberglass composites with good results lately. So far very few cuts. Just prototypes.

Got mine on ebay, but these look like them:
http://www.bibbtool.com/onsrud-flute-burr-cut-dia-flute-lgth-p-6787.html?gclid=CjwKEAjwtYSsBRCDx6rM1v_uqmsSJAAZgf 2q5BzgTLbZJt8ll5oP3FGtLHRIP09GZp16bzV2aEQ36xoCcknw _wcB

[knight_toolworks]

most is not g10 luckily but it is 500 pounds of it I will be cutting most is phenolic thats paper based. I have burrs I got off eBay for about 2.00 for the onsrud they were almost giving them away. I bought a few of thee too http://www.onsrud.com/product/Item/m/itemDetail.html?itemId=63-080

[willnewton]

Diamond cut chipbreaker bits or spiral cut chipbreaker bits. More info here. http://www.talkshopbot.com/forum/showthread.php?21624-Carbon-Fiber&p=181061#post181061

[knight_toolworks]

the bit from onsrud a single flute bit was horrible the noise and heat it made and even at .5ips and only 1/16" pass depth it was bad and flexing causing a beveled cut. I have a bunch of diamond burrs and they worked much better I could cut at tips and the 1/8" pass depth. my whole shop reeks and I am just starting. http://i154.photobucket.com/albums/s266/knighttoolworks/posting/ACC13258-960D-48B5-B85B-3FE5D0D3D664_zpsahwq2esb.jpg (http://s154.photobucket.com/user/knighttoolworks/media/posting/ACC13258-960D-48B5-B85B-3FE5D0D3D664_zpsahwq2esb.jpg.html)